TREA

John T. O'Brien

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  • Webster, WI, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Apparatus and method for starting a chain saw
    • Patent number 7,322,334
    • Issue date Jan 29, 2008
    • John T. O'Brien
    • B27 - WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL NAILING OR STAPLING MACH...
  • Information Patent Grant

    Wood splitter
    • Patent number 4,310,039
    • Issue date Jan 12, 1982
    • John T. O'Brien
    • B27 - WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL NAILING OR STAPLING MACH...